Introduction
Welcome to the Upper Missouri River Basin (UMRB) drought indicators document. This document provides an overview of several drought metrics commonly used across the globe. In this document We focus on:
- Describing general overview and theoretical basis for a metric
- Describe the data required for calculation
- Compute and display current conditions
- Briefly discussing the mathematical derivation of the metric
- Discuss the relative strengths and weaknesses of a metric
- Describe historical validation of a metric
- Show validation of a metric using data collected within the UMRB
- Provide a simple recommendation of its usage across the UMRB for describing differing forms of drought
Produced by the Montana Climate Office
Montana Forest & Conservation Experiment Station
University of Montana
32 Campus Drive
Missoula, MT 59812
Phone: (406) 243-6793
state.climatologist@umontana.edu